The heart of a healthy man beats normally per minute
$60-70$ times
$70-80$ times
$80-90$ times
$85-95$ times
Describe external structure of heart.
What is the function of valves in the heart?
Definition / Explanation :
$(1)$ $AV$ valve (Tricuspid)
$(2)$ Mitral (Bicuspid) valves
‘Bundle of His’ is a part of which one of the following organs in humans?
Give difference : Atrium and Ventricles